Yafsoanite

Formula: Ca₃Te₂Zn₃O₁₂

Origin of name: froms YAFSOAN, acronym for a Siberian scientific academy

Crystal system: Cubic/Isometric

Crystal class: 4/m 3 2/m

Twinning:

Unit cell: a = 12.632

Colour: Light to dark brown

Diaphaneity: 

Luster: Vitreous

Habit: crystals 0.1 to 0.5 mm, intergrowths, radiating concentric masses

Hardness: 6

Specific gravity: 5.55

Cleavage: None

Tenacity: 

Streak: 

Synonyms/varieties:

Comments: